Api.JetEscrowUpdate 方法

项目
06/13/2023

对一列执行原子加法操作。此函数允许多个会话同时更新同一记录，而不会发生冲突。另请参阅 EscrowUpdate (JET_SESID、JET_TABLEID、JET_COLUMNID、Int32) 。

Namespace：Microsoft.Isam.Esent.Interop
装配： Microsoft.Isam.Esent.Interop.dll) 中的 Microsoft.Isam.Esent.Interop (

语法

'Declaration
Public Shared Sub JetEscrowUpdate ( _
    sesid As JET_SESID, _
    tableid As JET_TABLEID, _
    columnid As JET_COLUMNID, _
    delta As Byte(), _
    deltaSize As Integer, _
    previousValue As Byte(), _
    previousValueLength As Integer, _
    <OutAttribute> ByRef actualPreviousValueLength As Integer, _
    grbit As EscrowUpdateGrbit _
)
'Usage
Dim sesid As JET_SESID
Dim tableid As JET_TABLEID
Dim columnid As JET_COLUMNID
Dim delta As Byte()
Dim deltaSize As Integer
Dim previousValue As Byte()
Dim previousValueLength As Integer
Dim actualPreviousValueLength As Integer
Dim grbit As EscrowUpdateGrbitApi.JetEscrowUpdate(sesid, tableid, _
    columnid, delta, deltaSize, previousValue, _
    previousValueLength, actualPreviousValueLength, _
    grbit)

public static void JetEscrowUpdate(
    JET_SESID sesid,
    JET_TABLEID tableid,
    JET_COLUMNID columnid,
    byte[] delta,
    int deltaSize,
    byte[] previousValue,
    int previousValueLength,
    out int actualPreviousValueLength,
    EscrowUpdateGrbit grbit
)